Senior Mainframe Developer | COBOL, JCL & z/OS

Your new companyHays has partnered with a leading technology consultancy delivering complex technology solutions for enterprise clients.

Your new roleAs a Senior Mainframe Developer, you’ll work across the development, enhancement and optimisation of enterprise mainframe applications.
Your responsibilities will include:

- Designing, developing and maintaining complex batch and online applications
- Building and enhancing solutions using COBOL and/or PL/I
- Developing and supporting JCL, VSAM file structures and batch processing
- Working within z/OS environments, including systems programming and performance tuning
- Troubleshooting complex production and application issues
- Supporting high-availability systems where reliability and quality are critical
- Collaborating with engineering, delivery and other cross-functional teams

What you’ll need to succeed
- Strong hands-on COBOL and/or PL/I development experience
- Excellent knowledge of JCL, VSAM and batch processing




- Hands-on experience with z/OS
- Experience with mainframe systems programming and performance tuning
- Experience developing and maintaining large-scale enterprise applications
- Previous experience in banking, insurance or other large enterprise environments
- Robust analytical, troubleshooting and problem-solving skills
- Ability to work effectively across cross-functional teams and modern delivery practices

What you’ll get in return
- Opportunity to work on mission-critical enterprise mainframe systems
- Technically challenging work across complex, large-scale applications

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.
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📌 Senior Mainframe Developer (Sydney)
🏢 Hays Recruitment
📍 Sydney